---
description: Vibe-coding step 3 — technical design
---

# /vibe-techdesign — Step 3: Tech design

Step 3 of the vibe-coding workflow: plan HOW to build it — stack, architecture, costs, deployment.

**Read `part3-tech-design-mvp.md` at the repository root and follow it as the single source of truth.** (If it isn't in this project, ask the user to paste it.)

The essentials:
- Requires `docs/PRD-*.md` — if it's missing, route the user to `/vibe-prd` first.
- Ask questions ONE at a time and wait for each answer.
- Echo back a verification summary and get a "yes" before generating.
- Write the doc to `docs/TechDesign-[AppName]-MVP.md`.

Done? Point the user to the next stage: `/vibe-agents`.